Wants a lumpy cam and power in the very low 2000 rpm range for trailer towing.
To me that is just a horrible idea.
It is very hard on bearings to pull an engine down to 2000 rpm under a load.
Lumpy cams do not really get into a good cruise set until 500 or more rpm than what you have listed.
Yes you can get by with it but to me it would not be optimum.
I would do a much smaller grind for that RPM something like [email protected]
.050 want it to lump a bit then go for a 108 or 106LSA with that duration.
For my towing stuff I like to be in the 2500 rpm minimum area and usually 2800 makes it really sweet with good power and velocity gets up a bit more through the runners and MPG does very well, better than at 2000 rpm.
But I base this on smaller engines than 460"
I did build an 11:1 396 with .060 over bore and large oval heads 2.19-1.88 valves I stuck a [email protected]
.050 cam in it with 108LSA and it really is lumpy and pulls very well ..buddy had it in a 3/4 ton truck with 456 gears and TH 400 trans.
It is now in a 1/2 ton after serving a decade of towing duties. Has a tunnel-ram and 2 600's on it now also and he stated it never pulled as hard as it does now.
210 PSI cranking pressure and runs 91 octane.
Many ways to go I suppose but I just never had luck at 2000 rpm.